Describe the structure of the molecule Y. (3) Describe the arrangement of molecules in part Y (4)
Describe three functions of the cell membrane. (3)

What statements describe a host organism?

What part of the brain is highlighted in the diagram below?

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?